Thaumamannia manni

Thaumamannia manni

Drake & Davis, 1960 ( Fig. 34 View Figure 34 )

Diagnosis: This species is the only Thaumamannia species where the scent gland is not visible in dorsal view. Additionally, the body format is remarkably different in T. manni , with a larger difference between the pronotum width and the widest part of the body, and this is the only Thaumamannia species with a slightly acute humeral angle.

Redescription: Body: Brown to reddish; antennae, rostrum and legs light brown ( Fig. 34A View Figure 34 ). Head: Strongly declined ( Fig. 34F View Figure 34 ), pubescent; antenniferous process almost half the scape length; pedicel almost twice the scape length, basi- and distiflagellomeres missing; eyes reduced with few ommatidia; bucculae roundish, smooth on its border, widest posteriorly, with only few small punctures near the insertion with the head, posterior border rounded; rostrum reaching at least the third abdominal segment ( Fig. 34B, C View Figure 34 ). Thorax: Pubescent; collar punctate; posterior lobe coarsely punctate; anterior border straight to slightly concave, posterior straight to slightly convex; paranota explanate, smooth, projected frontwards to up middle of the eyes, and in a small humeral angle posteriorly ( Fig. 34D View Figure 34 ); scutellum large, less than one-fourth of pronotum maximum width ( Fig. 34E View Figure 34 ); sternal laminae narrow, punctate. Hemelytra: Coriaceous, coleopteroid, ovate, pubescent and remarkably convex; carina-like vein extending from the anterior border to the posterior third of the hemelytra; deeply and entirely punctate; costal area with one row of punctures, anterior border round. Scent gland: Anterior branch gradually projected laterally, tip tilted horizontally, large, same size as the rest of the anterior branch, much more projected than base of anterior branch, edges thicker on the tip; posterior branch curved, with considerably enlarged tip with a cracked texture; sulcus prominent on both branches, fading only distally on the anterior branch tip; evaporatorium curved anteriorly, projected up to half of mesopleuron ( Figs 17B View Figure 17 – 34C View Figure 34 ).

Measurements: BL, 1.96; BW, 1.44; HL, 0.11; HW, 0.42; ID, 0.25; PL, 0.40; PW, 0.99; AS, 0.11 and AP, 0.21.

Distribution: Known only from Bolivia.

Material examined: Holotype xF: BOLIVIA: Mulford Biol. Expe. 1921–1922, W. M. Mann coll., 1954. [USNMENT 00871151] ( USNM).